let's turn to the author of "hoffa wars." he's been following this story since hoffa first disappeared. dan, you've been communicating with this tipster since last march. you've talked to him several times since then. tell us about this person. >> he called me on march 30th, and he told me, and i got dozens of these tips over the past 37 years, he told me that he knew specifically where jimmy hoffa's body was buried. of course, i was very skeptical. i questioned him about a number of things. he -- i was -- i remained skeptical throughout the interview. the cast of characters didn't line up. the location of the place, and there was absolutely no privacy for this. so i suggested did he go to the fbi. the fbi apparently was very skeptical about him, as well, having the same problems with cast of characters. he called me back two or three times, and he -- and i told him to go to the local police, the roseville police department. which he did. and i have to hand it to chief berlin and the roseville police department for pursuing t